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M-AGEW adapts workout intensity dynamically based on real-time sensor data and overlays contextual AR feedback and guidance, including biometric readings and a virtual coaching avatar. The technology was created through a user-centric design process, supported by an initial user study and industrial partnership. We validate M-AGEW through a technology acceptance evaluation with professional athletes, reporting promising results in usability, enjoyment, and perceived usefulness. Our findings suggest that AR headsets can effectively enhance and supplement outdoor physical activity, offering a motivating alternative to standard fitness monitoring.<\/jats:p>","DOI":"10.3389\/frvir.2025.1613717","type":"journal-article","created":{"date-parts":[[2025,9,22]],"date-time":"2025-09-22T05:28:15Z","timestamp":1758518895000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["An augmented outdoor workout system for jogging and calisthenics support"],"prefix":"10.3389","volume":"6","author":[{"given":"Vincenzo","family":"Armandi","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lorenzo","family":"Stacchio","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pasquale","family":"Cascarano","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shirin","family":"Hajahmadi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lorenzo","family":"Donatiello","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gustavo","family":"Marfia","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2025,9,22]]},"reference":[{"key":"B1","unstructured":"Vision OS features\n          \n          \n          2023"},{"key":"B2","doi-asserted-by":"publisher","first-page":"28","DOI":"10.3390\/computers11020028","article-title":"An overview of augmented reality","volume":"11","author":"Arena","year":"2022","journal-title":"Computers"},{"key":"B3","doi-asserted-by":"publisher","first-page":"19","DOI":"10.1177\/1941738109356941","article-title":"Cardiovascular health, part 2: sports participation in athletes with cardiovascular conditions","volume":"2","author":"Baman","year":"2010","journal-title":"Sports Health"},{"key":"B4","doi-asserted-by":"publisher","first-page":"26637","DOI":"10.1109\/access.2020.2971576","article-title":"Human digital twin for fitness management","volume":"8","author":"Barricelli","year":"2020","journal-title":"Ieee Access"},{"key":"B5","article-title":"Designing interactive systems: a comprehensive guide to hci","volume":"3","author":"Benyon","year":"2014","journal-title":"UX Interact. 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